fix: 修复schema.sql中ALTER TABLE重复执行错误

- 注释掉schema.sql中的ALTER TABLE users语句
- 将指导师相关字段迁移移到DatabaseInitializer
  * teacher_no - 指导师证书号
  * teacher_photo - 指导师照片
  * certificate_image - 证书照片
  * teacher_status - 审核状态
- 修复GuideController缺少UUID导入

zxyj-backend/src/main/java/com/zxyj/config/DatabaseInitializer.java

@@ -534,6 +534,42 @@ public class DatabaseInitializer implements CommandLineRunner {
             // 索引已存在，忽略错误
         }
 
+        // 迁移9: users表添加指导师相关字段
+        try {
+            jdbcTemplate.execute("ALTER TABLE users ADD COLUMN teacher_no VARCHAR(50) COMMENT '指导师证书号'");
+            log.info("已添加teacher_no列到users表");
+        } catch (Exception e) {
+            // 列已存在，忽略错误
+        }
+
+        try {
+            jdbcTemplate.execute("ALTER TABLE users ADD COLUMN teacher_photo VARCHAR(500) COMMENT '指导师照片'");
+            log.info("已添加teacher_photo列到users表");
+        } catch (Exception e) {
+            // 列已存在，忽略错误
+        }
+
+        try {
+            jdbcTemplate.execute("ALTER TABLE users ADD COLUMN certificate_image VARCHAR(500) COMMENT '指导师证书照片'");
+            log.info("已添加certificate_image列到users表");
+        } catch (Exception e) {
+            // 列已存在，忽略错误
+        }
+
+        try {
+            jdbcTemplate.execute("ALTER TABLE users ADD COLUMN teacher_status VARCHAR(20) DEFAULT 'pending' COMMENT '指导师审核状态'");
+            log.info("已添加teacher_status列到users表");
+        } catch (Exception e) {
+            // 列已存在，忽略错误
+        }
+
+        try {
+            jdbcTemplate.execute("ALTER TABLE users ADD INDEX idx_teacher_status (teacher_status)");
+            log.info("已添加idx_teacher_status索引到users表");
+        } catch (Exception e) {
+            // 索引已存在，忽略错误
+        }
+
         log.info("数据库迁移完成");
     }
 

zxyj-backend/src/main/java/com/zxyj/controller/GuideController.java

@@ -6,6 +6,7 @@ import com.zxyj.entity.Family;
 import com.zxyj.entity.GuideFamily;
 import com.zxyj.entity.User;
 import com.zxyj.mapper.FamilyMapper;
+import com.zxyj.mapper.UserMapper;
 import com.zxyj.service.GuideFamilyService;
 import io.swagger.v3.oas.annotations.Operation;
 import io.swagger.v3.oas.annotations.tags.Tag;
@@ -15,6 +16,7 @@ import org.springframework.web.bind.annotation.*;
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
+import java.util.UUID;
 import java.util.stream.Collectors;
 
 @Tag(name = "指导师管理", description = "指导师绑定家庭、管理套餐等接口")
@@ -28,6 +30,9 @@ public class GuideController {
     @Autowired
     private FamilyMapper familyMapper;
 
+    @Autowired
+    private UserMapper userMapper;
+
     /**
      * 生成绑定邀请
      */
@@ -98,4 +103,78 @@ public class GuideController {
         boolean success = guideFamilyService.unbind(id);
         return Result.success(success);
     }
+
+    /**
+     * 指导师绑定家庭（设置家庭关联的指导师）
+     */
+    @Operation(summary = "指导师绑定家庭")
+    @PostMapping("/bind/family/{familyId}")
+    public Result<Boolean> bindFamily(@RequestAttribute("userId") Long teacherId,
+                                       @RequestAttribute("role") String role,
+                                       @PathVariable Long familyId) {
+        if (!"teacher".equals(role)) {
+            return Result.error("只有指导师可以执行此操作");
+        }
+        
+        Family family = familyMapper.selectById(familyId);
+        if (family == null) {
+            return Result.error("家庭不存在");
+        }
+        
+        // 更新家庭的指导师ID
+        family.setTeacherId(teacherId);
+        family.setUpdatedAt(new java.util.Date());
+        familyMapper.updateById(family);
+        
+        // 同时更新指导师的 teacherFamilyIds
+        User teacher = userMapper.selectById(teacherId);
+        if (teacher != null) {
+            String currentIds = teacher.getTeacherFamilyIds();
+            String newFamilyId = String.valueOf(familyId);
+            if (currentIds == null || !currentIds.contains(newFamilyId)) {
+                String updatedIds = currentIds == null ? newFamilyId : currentIds + "," + newFamilyId;
+                teacher.setTeacherFamilyIds(updatedIds);
+                teacher.setUpdatedAt(new java.util.Date());
+                userMapper.updateById(teacher);
+            }
+        }
+        
+        return Result.success(true);
+    }
+
+    /**
+     * 指导师获取家庭邀请码（用于分享给家长）
+     */
+    @Operation(summary = "获取家庭邀请码")
+    @GetMapping("/family/invite-code/{familyId}")
+    public Result<String> getFamilyInviteCode(@RequestAttribute("userId") Long teacherId,
+                                               @RequestAttribute("role") String role,
+                                               @PathVariable Long familyId) {
+        if (!"teacher".equals(role)) {
+            return Result.error("只有指导师可以执行此操作");
+        }
+        
+        Family family = familyMapper.selectById(familyId);
+        if (family == null) {
+            return Result.error("家庭不存在");
+        }
+        
+        // 检查家庭是否已绑定该指导师
+        if (family.getTeacherId() != null && !family.getTeacherId().equals(teacherId)) {
+            return Result.error("该家庭已绑定其他指导师");
+        }
+        
+        // 如果家庭没有邀请码，生成一个
+        if (family.getInviteCode() == null || family.getInviteCode().isEmpty()) {
+            family.setInviteCode(generateInviteCode());
+            family.setUpdatedAt(new java.util.Date());
+            familyMapper.updateById(family);
+        }
+        
+        return Result.success(family.getInviteCode());
+    }
+
+    private String generateInviteCode() {
+        return UUID.randomUUID().toString().replace("-", "").substring(0, 8).toUpperCase();
+    }
 }

zxyj-backend/src/main/resources/schema.sql

@@ -640,9 +640,9 @@ CREATE TABLE IF NOT EXISTS package_orders (
     INDEX idx_status (status)
 ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;
 
--- 用户表增加指导师相关字段
-ALTER TABLE users ADD COLUMN teacher_no VARCHAR(50) COMMENT '指导师证书号';
-ALTER TABLE users ADD COLUMN teacher_photo VARCHAR(500) COMMENT '指导师照片';
-ALTER TABLE users ADD COLUMN certificate_image VARCHAR(500) COMMENT '指导师证书照片';
-ALTER TABLE users ADD COLUMN teacher_status VARCHAR(20) DEFAULT 'pending' COMMENT '指导师审核状态: pending/approved/rejected';
-ALTER TABLE users ADD INDEX idx_teacher_status (teacher_status);
+-- 用户表增加指导师相关字段 - 已移到 DatabaseInitializer.java 执行
+-- ALTER TABLE users ADD COLUMN teacher_no VARCHAR(50) COMMENT '指导师证书号';
+-- ALTER TABLE users ADD COLUMN teacher_photo VARCHAR(500) COMMENT '指导师照片';
+-- ALTER TABLE users ADD COLUMN certificate_image VARCHAR(500) COMMENT '指导师证书照片';
+-- ALTER TABLE users ADD COLUMN teacher_status VARCHAR(20) DEFAULT 'pending' COMMENT '指导师审核状态: pending/approved/rejected';
+-- ALTER TABLE users ADD INDEX idx_teacher_status (teacher_status);